<?php
echo 12345,"\n";
echo 0b1011, "\n";
echo 567, "\n";
echo 0o567, "\n";
echo 0x2AF, "\n";
//
echo 18 / 5, "\n";
echo 18 % 5, "\n";
echo @(18.9 % 5.8), "\n";
echo 3**2.5, "\n";
//运算符的优先级
echo 5-6*2,"\n";
//运算符的结合性
echo 8/4*2,"\n";
echo (-3)**2,"\n";
//
echo

